petitionary
(a.)請願的,為請願的,請求的
Pe·ti·tion·a·ry a.
1. Supplicatory; making a petition.
Pardon Rome, and any petitionary countrymen. --Shak.
2. Containing a petition; of the nature of a petition; as, a petitionary epistle.
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petitionary
adj : of the nature of or expressing a petition; "the petitionary
procedure had a quality of indecisiveness"